I run 125 foot of 2/0 ultraflex on each, and a 25 foot whip made of 1 ga i think. A bit long, but that way i won't feel bad about trimming them back so they'll last and my machine can push enough to get away with it. They require 100 foot min when you pipeline, but the less lead you use the better it works because lead is resistance so it's lowering the voltage. The old sa 200s were 40 volt machines too, which is far higher than what is typically found in an inverter, so they tolerate more lead with less negative effects. I have a remote that is run on an extension cord (100 foot 12 ga, probably should use 10), and even that size matters since that's the control voltage.
If you're just working in your garage a couple 25 foot leads of 1 ga would likely be fine. I run tweco quick connects, only way to go since you can change connections in seconds making stuff easier to move. Then you can get chunks of lead with a male and female ends to lengthen as needed down the line. For your whip (the one you hold to weld with) the smaller diameter is nicer to hold, and if you want the best the ultraflex is like rope it's so flexible, which makes all the difference in the world for comfort if you're doing it all day. Inverters don't have voltage to spare, so a longer extension cord is honestly a viable alternate around the house unless you're working in a bunch of wet mud.
If you're just working in your garage a couple 25 foot leads of 1 ga would likely be fine. I run tweco quick connects, only way to go since you can change connections in seconds making stuff easier to move. Then you can get chunks of lead with a male and female ends to lengthen as needed down the line. For your whip (the one you hold to weld with) the smaller diameter is nicer to hold, and if you want the best the ultraflex is like rope it's so flexible, which makes all the difference in the world for comfort if you're doing it all day. Inverters don't have voltage to spare, so a longer extension cord is honestly a viable alternate around the house unless you're working in a bunch of wet mud.